Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual - part 49

EC(STI)-10

Canister

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

Tightening torque:

7.5 N·m (0.8 kgf-m, 5.5 ft-lb)

Tightening torque:

18 N·m (1.8 kgf-m, 13.3 ft-lb)

Tightening torque:

8 N·m (0.8 kgf-m, 5.9 ft-lb)

Tightening torque:

18 N·m (1.8 kgf-m, 13.3 ft-lb)

C: INSPECTION

1) Check that the canister and leak check valve as-

sembly have no deformation, cracks or other dam-

ages.

2) Check that the tube has no cracks, damage or

loose part.

EC-02982

EC-02983

EC-02984

EC-02985

EC-02986

EC-02987

EC(STI)-11

Purge Control Solenoid Valve

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

5. Purge Control Solenoid Valve

A: REMOVAL

1. PURGE CONTROL SOLENOID VALVE 1

1) Disconnect the ground cable from battery.

2) Remove  the  bolts  which  secure  purge  control

solenoid valve 1 to the intake manifold, and discon-

nect the connector from the purge control solenoid

valve 1.

3) Disconnect  the  vacuum  hose  and  the  vacuum

control hose from purge control solenoid valve 1.

2. PURGE CONTROL SOLENOID VALVE 2

1) Disconnect the ground cable from battery.

2) Disconnect connector (A), vacuum hose (B), and

vacuum control hose (C) from purge control sole-

noid valve 2.

3) Remove purge control solenoid valve 2 from the

solenoid valve bracket.

B: INSTALLATION

1. PURGE CONTROL SOLENOID VALVE 1

Install in the reverse order of removal.
NOTE:

Connect  the  vacuum  hose  and  vacuum  control

hose as shown in the figure.

Tightening torque:

19 N·m (1.9 kgf-m, 14.0 ft-lb)

IN-00203

EC-03005

IN-00203

(a) To intake manifold
(b) To branching pipe → fuel pipe

EC-03006

(A)

(B)

(C)

EC-02485

(b)

(a)

EC(STI)-12

Purge Control Solenoid Valve

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

2. PURGE CONTROL SOLENOID VALVE 2

Install in the reverse order of removal.
NOTE:

Connect  the  vacuum  hose  and  vacuum  control

hose as shown in the figure.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

C: INSPECTION

1. PURGE CONTROL SOLENOID VALVE

1) Check that the purge control solenoid valve has

no deformation, cracks or other damages.

2) Measure the resistance between the purge con-

trol solenoid valve terminals.

3) Check that air does not come out from (B) when

air is blown into (A).

• Purge control solenoid valve 1

• Purge control solenoid valve 2

4) Connect the battery positive terminal to the ter-

minal No. 1 and the battery negative terminal to the

terminal  No.  2.  Check  that  air  is  discharged  from

(B), when supplying air to (A).

• Purge control solenoid valve 1

(a) To intake duct
(b) To branching pipe → fuel pipe

 

Terminal No.

Standard

Purge control sole-

noid valve 1

1 and 2

32±2 Ω (when 

20°C (68°F))

Purge control sole-

noid valve 2

24±3 Ω (when 

20°C (68°F))

EC-02486

(a)

(b)

2 1

EC-02426

EC-02474

(A)

(B)

EC-02431

(A)

(B)

2 1

(A)

(B)

EC-02475

EC(STI)-13

Purge Control Solenoid Valve

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

• Purge control solenoid valve 2

2. OTHER INSPECTIONS

Make sure the vacuum hoses and vacuum control

hoses are not cracked or loose.

EC-02432

2 1

(A)

(B)